Saving Cats and Fighting Loan Sharks on Doc Martin. Watch WLRN-TV.

Threatened by loan sharks, Bert Large can't afford to host a charity event for a cat sanctuary. PC Penhale intervenes, and Eleanor comes up with a way to bring more customers to Bert's restaurant. Meanwhile, Martin makes plans to leave Portwenn in a week.

Last Tango In Halifax (9:00 pm)

Gillian is devastated when Celia inadvertently reveals a secret she has kept since she was 15. Alan and Gillian's already testy relationship suffers as he distances himself further from her. Kate feels awkward around Lawrence, who finds his mom's new relationship difficult to accept.